The California State Capitol
Foundation Lookup

Private foundations San Marino, CAtax years 2024 to 2025

Private foundations in San Marino, CA

49 private foundations based in San Marino, CA filed a 990-PF in the last two years. In their latest returns they gave $21.3 million in 485 grants, and 5 say they accept applications.

See which foundations fund work like yours Matching by cause, place and grant size

Foundations with a return in the last two years, each by its latest return (tax years 2024 to 2025), read from the IRS e-file on Nov 11, 2026. Returns reach the IRS 5 to 18 months after the year they describe.

Largest givers

By grants paid, latest return
  1. WHH FoundationSan Marino, CA · tax year 2024 149 grants Preselected only $7,912,100 giving
  2. The Thornton Foundation DelawareSan Marino, CA · tax year 2025 Grants listed in an attachment (not in the e-file) Preselected only $4,027,000 giving
  3. Silent Partner GrantsSan Marino, CA · tax year 2024 32 grants Preselected only $2,456,853 giving
  4. Jayasinhala FoundationSan Marino, CA · tax year 2024 3 grants Preselected only $1,804,218 giving
  5. Universal Sunlight FoundationSan Marino, CA · tax year 2024 7 grants Accepts applications $1,141,020 giving
  6. Greenwood FoundationSan Marino, CA · tax year 2024 6 grants Preselected only $600,000 giving
  7. Christen C and Ben H Garrett Family FoundationSan Marino, CA · tax year 2025 21 grants Preselected only $519,558 giving
  8. Allan & Lalita Charitable FoundationSan Marino, CA · tax year 2024 40 grants Preselected only $455,827 giving
  9. Lam Yau Jong Charitable FoundationSan Marino, CA · tax year 2025 15 grants Preselected only $402,000 giving
  10. The Boardman Family FoundationSan Marino, CA · tax year 2024 8 grants Preselected only $231,339 giving
  11. Thomas N Felgner Charitable FoundationSan Marino, CA · tax year 2025 6 grants Preselected only $208,000 giving
  12. Kings Bridge FoundationSan Marino, CA · tax year 2025 1 grant Preselected only $160,000 giving
  13. Vicki & Lewis Solmon Family FoundationSan Marino, CA · tax year 2025 1 grant Preselected only $150,000 giving
  14. Chapman Family FoundationSan Marino, CA · tax year 2024 10 grants Preselected only $142,351 giving
  15. The Negri FoundationSan Marino, CA · tax year 2024 21 grants Preselected only $138,042 giving
  16. Barbera FoundationSan Marino, CA · tax year 2025 Grants listed in an attachment (not in the e-file) Not stated $119,450 giving
  17. The Warrensodenhopkins Family FoundationSan Marino, CA · tax year 2025 8 grants Preselected only $105,000 giving
  18. Jeanne Ward FoundationSan Marino, CA · tax year 2024 13 grants Accepts applications $98,000 giving
  19. George & Mary Ann Leal FoundationSan Marino, CA · tax year 2025 21 grants Preselected only $92,000 giving
  20. The Duncan Great Cause FoundationSan Marino, CA · tax year 2025 14 grants Accepts applications $77,548 giving
  21. Strugar Family FoundationSan Marino, CA · tax year 2025 2 grants Preselected only $75,300 giving
  22. D&G Charitable FoundationSan Marino, CA · tax year 2024 4 grants Preselected only $71,000 giving
  23. Formosa Titan FoundationSan Marino, CA · tax year 2024 10 grants Preselected only $65,000 giving
  24. The California Notley FoundationSan Marino, CA · tax year 2025 5 grants Preselected only $57,500 giving
  25. Leemoy Family FoundationSan Marino, CA · tax year 2024 9 grants Preselected only $50,800 giving

Foundations that accept applications

Largest first

The return gives an application contact and does not check the preselected-only box.

  1. Universal Sunlight FoundationSan Marino, CA · tax year 2024 7 grants Accepts applications $1,141,020 giving
  2. Jeanne Ward FoundationSan Marino, CA · tax year 2024 13 grants Accepts applications $98,000 giving
  3. The Duncan Great Cause FoundationSan Marino, CA · tax year 2025 14 grants Accepts applications $77,548 giving
  4. David and Elita Balfour FoundationSan Marino, CA · tax year 2025 29 grants Accepts applications $15,975 giving
  5. LMGX Bright Mind FoundationSan Marino, CA · tax year 2025 3 grants Accepts applications $2,200 giving

Giving by cause

Grants to organizations we matched to the IRS list of exempt organizations, by their category.

  1. Health9 foundations $4,213,82043% of the total
  2. Education12 foundations $1,088,89211% of the total
  3. Philanthropy and grantmaking9 foundations $1,036,08111% of the total
  4. Arts and culture4 foundations $844,6259% of the total
  5. Human services8 foundations $446,9155% of the total
  6. International aid5 foundations $420,0004% of the total
  7. 15 other causes $1,798,57518% of the total

Most active small givers

Foundations with under $1 million in assets, by the number of grants they listed.

  1. David and Elita Balfour FoundationSan Marino, CA · tax year 2025 29 grants Accepts applications $15,975 giving
  2. Kneier Family FoundationSan Marino, CA · tax year 2025 18 grants Preselected only $25,190 giving
  3. Formosa Titan FoundationSan Marino, CA · tax year 2024 10 grants Preselected only $65,000 giving
  4. The Boardman Family FoundationSan Marino, CA · tax year 2024 8 grants Preselected only $231,339 giving
  5. The Warrensodenhopkins Family FoundationSan Marino, CA · tax year 2025 8 grants Preselected only $105,000 giving
  6. The Louie Family FoundationSan Marino, CA · tax year 2024 7 grants Preselected only $31,900 giving
  7. Thomas N Felgner Charitable FoundationSan Marino, CA · tax year 2025 6 grants Preselected only $208,000 giving
  8. GARNETTE & LLOYD McVEY FAMILY FOUNDATIONSan Marino, CA · tax year 2025 6 grants Preselected only $40,000 giving
  9. The California Notley FoundationSan Marino, CA · tax year 2025 5 grants Preselected only $57,500 giving
  10. Jameson Research FoundationSan Marino, CA · tax year 2025 5 grants Preselected only $27,000 giving
  11. Tsan Tsung Memorial FoundationSan Marino, CA · tax year 2024 5 grants Preselected only $4,640 giving
  12. LMGX Bright Mind FoundationSan Marino, CA · tax year 2025 3 grants Accepts applications $2,200 giving
  13. Strugar Family FoundationSan Marino, CA · tax year 2025 2 grants Preselected only $75,300 giving
  14. Stephen J Weaver FoundationSan Marino, CA · tax year 2024 2 grants Preselected only $10,271 giving
  15. Vicki & Lewis Solmon Family FoundationSan Marino, CA · tax year 2025 1 grant Preselected only $150,000 giving